Cysga wir, Heulwen /
Simmons, Jane.
Huws, Emily.
Llandysul : Gwasg Gomer,
1999.
Addasiad Cymraeg gan = Welsh adaptation by: Emily Huws.
Teitl clawr = Cover title.
Testun a lluniau ar y cloriau mewnol = Text and illustrations on inside covers.
Ducks